JP5666559B2 - Enabling support for transparent repeaters in wireless communications - Google Patents

Description

[Claim of priority under 35 USC 119]
This patent application is assigned to the assignee of this patent application and is specifically incorporated herein by reference, filed on April 21, 2009 and named “METHODS AND APPARATUS TO ENABLE SUPPORT FOR TRANSPARENT RELAYS”. The priority of US Provisional Patent Application No. 61 / 171,374 is claimed.

  The following description relates generally to wireless communications, and more particularly to facilitating mediation of quality of service associations for wireless streams using broadband-based wireless access points deployed by users.

  Wireless communication systems are widely deployed to provide various types of communication content such as audio content and data content. A typical wireless communication system may be a multiple access system that can support communication with multiple users by sharing available system resources (eg, bandwidth, transmit power, etc.). Examples of such multiple access systems include code division multiple access (CDMA) systems, time division multiple access (TDMA) systems, frequency division multiple access (FDMA) systems, orthogonal frequency division multiple access (OFDMA) systems, etc. Can be. In addition, these systems are based on standards such as 3rd Generation Partnership Project (3GPP), 3GPP Long Term Evolution (LTE), Ultra Mobile Broadband (UMB), or multi-carrier wireless standards such as Evolution Data Optimized (EV-DO). Alternatively, it is possible to comply with one or more revisions of the above standards.

  In general, a wireless multiple-access communication system can simultaneously support communication for multiple mobile devices. Each mobile device can communicate with one or more base stations via transmissions on the forward and reverse links. The forward link (or downlink) refers to the communication link from the base station to the mobile device, and the reverse link (or uplink) refers to the communication link from the mobile device to the base station. Further, communication between a mobile device and a base station can be established via a single input single output (SISO) system, a multiple input single output (MISO) system, a multiple input multiple output (MIMO) system, and so on.

  One recent technological advance in wireless communications is the incorporation of small, low power base stations or wireless access points within existing macro base station deployments. These low power base stations can be managed by nearby macro base stations or can be treated as independent base stations by the wireless network. Typically, low-power base stations are deployed indoors, such as inside shopping malls, office buildings, apartment buildings, etc., to provide targeted cellular coverage for a given building, or in poor coverage areas Distributed outdoors, it can provide cellular coverage targeted to a specific geographic region. These base stations have several advantages to supplement macro expansion. First, small low-power base stations are generally less expensive than full macro base stations and can supplement macro deployment at lower costs. Second, because these base stations typically transmit over much shorter distances with much lower power, supplemental deployments of low power base stations are coordinated to limit interference to surrounding networks. It is possible.

  There are various types of complementary or low power base stations. One common example is a relay node. A relay node refers to a base station-like entity that is not coupled to a wired backhaul. Further, the relay node is typically a low power base station having a small coverage area compared to a normal 50 watt macro base station or similar macro base station. In addition, relay nodes are typically subordinate to and controlled by one or more donor base stations.

  In operation, a relay node can receive data wirelessly from a donor base station and further forward the data to an access terminal (AT) that is serviced by the relay node (and also by the donor base station). The relay node can transfer data to the AT using the same wireless spectrum as the donor base station (in-band repeater), or it can receive data on the first spectrum and on the second spectrum The data can be retransmitted (out-of-band repeater). In-band repeaters are often half-duplex entities that can transmit or receive within a given time frame, but not both, whereas out-of-band repeaters Often, it is possible to be full-duplex capable of simultaneous transmission and reception (on different frequency bands).

  In addition to the general features described above, there are several variants of relay nodes. For example, a transparent relay node refers to a relay node that is not visible to the AT or recognized as a separate entity by the AT. Rather, transparent repeaters are indistinguishable from donor base stations, at least from the perspective of the AT. Thus, a transparent repeater typically simply resends cell identity information, acquisition and synchronization information, etc., like a donor base station. The most common function of a transparent repeater is to increase the transmission power of signals transmitted to the AT. In some cases, transparent repeaters decode and filter those signals to provide higher quality signals as opposed to simply increasing the signal amplitude, and then retransmitting them. can do. One particular repeater, called an incremental redundancy repeater (IR repeater), can wirelessly monitor base station scheduling messages to identify data traffic or control traffic destined for the AT. The IR repeater can demodulate this traffic and further assist the AT in uplink or downlink feedback related signaling, such as hybrid automatic repeat request (HARQ) transmission in 3GPP long term evolution systems. Once decoded, the IR repeater can optionally filter the demodulated signal and then remodulate the traffic and retransmit to the AT.

  Although relay nodes have several advantages, there are some drawbacks and design challenges associated with incorporating these entities into the macro expansion. For example, a half-duplex node has fewer transmit and receive resources due to the nature of half-duplex operation. This tends to reduce the effectiveness of the relay node, and may further reduce the potential loading capacity (eg, how many ATs can be serviced simultaneously). In addition, since ATs are generally configured to look for some control signals in specific time subframes, some of which may not be available to half-duplex relay nodes as transmission subframes. Complexity of managing control signaling between the base station and the relay node or between the base station and the AT arises. These and other challenges are the focus of current research in wireless networking.

  The following presents a simplified summary of one or more aspects in order to provide a basic understanding of such aspects. This summary is not an extensive overview of all contemplated aspects, and it may identify important or essential elements of all aspects, or delineate any aspect or scope of all aspects Not intended. Its sole purpose is to present some concepts of one or more aspects of the disclosure in a simplified form as a prelude to the more detailed description that is presented later.

  The present disclosure allows for improved implementation of supplemental wireless nodes in wireless base station deployments. In some aspects, a donor base station is configured to send data transmissions to a set of user equipment (UE) served by the base station and a schedule for data transmission from such sets. The base station may further provide schedules and identifiers for that set of UEs to one or more wireless nodes serving the base station. Each access channel measurement between each UE and each wireless node can be forwarded to this base station, which identifies the optimal access channel and, accordingly, the UE Wireless nodes to be served can be assigned to a subset of the set.

  In other aspects of this disclosure, the donor base station may share multiple sets of data transmissions for a set of UEs within a single signal time slot (eg, frame, subframe, subslot, etc.) for wireless resources. Schedule to block. In certain aspects, an orthogonal coding scheme may be used so that each data transmission of a set of multiple data transmissions can be distinguished from other transmissions of the set. Further, the donor base station assigns a subset of wireless nodes to one or more of the set of data transmissions to achieve cell division gain on at least some of the data transmissions. In at least one aspect, the donor base station can reduce or blank out its transmission on a common block of wireless resources to improve the range of wireless nodes. Other aspects obtain such reports implemented by a base station or implemented by a wireless terminal device configured to provide an uplink control report when coupled to a half-duplex wireless node. Various mechanisms for doing so are disclosed.

  In another disclosed aspect, provided is a method of wireless communication. The method can comprise obtaining a set of user equipment identifiers (a set of UE IDs) for a set of UEs served by a base station. Further, the method can comprise utilizing a set of UE IDs and uplink scheduling information (UL scheduling information) for the set of UEs to obtain respective UE channel measurements. Further, the method can comprise receiving an assignment to provide wireless service to a subset of the set of UEs based at least in part on one or more of the UE channel measurements.

  In yet another aspect, provided is an apparatus configured for wireless communication. The device may include a wireless communication interface configured to exchange wireless signals with a UE and with a set of access points associated with and remotely located from the device. is there. In addition, the apparatus implements the instructions and memory for storing instructions configured to provide selective access point services to the UE based on relative signal measurements of the set of access points. A data processor for executing the module. In particular, these modules are based on a distribution module that shares an identifier (ID) and transmission schedule for the UE with a set of access points and respective UE signal measurements provided by a subset of the set of access points. And an intermediary module that selects at least one of a set of access points to be serviced.

  In addition to the foregoing, the present disclosure provides an apparatus for wireless communication. The apparatus can comprise means for obtaining a set of UE IDs for a set of UEs served by a base station using a communication interface. Further, the apparatus can comprise means for using a signal processor to obtain a respective UE channel measurement utilizing a set of UE IDs and UL scheduling information for the set of UEs. In at least some aspects, the apparatus uses a communication interface to receive an assignment to provide wireless service to a subset of a set of UEs based at least in part on one or more of UE channel measurements. It is also possible to provide the means.

  According to one or more further aspects, disclosed is at least one processor configured for wireless communication. The processor can comprise a module for obtaining a set of UE IDs for a set of UEs served by a base station. The processor can further comprise a module that utilizes a set of UE IDs and UL scheduling information for a set of UEs to obtain respective UE channel measurements. Further, the processor can comprise a module that receives an assignment to provide wireless service to a subset of the set of UEs based at least in part on one or more of the UE channel measurements.

  In at least one further aspect, disclosed is a computer program product comprising a computer-readable medium. The computer readable medium can comprise code for causing a computer to obtain a set of UE IDs for a set of UEs served by a base station. The computer readable medium may further comprise code that causes the computer to obtain a respective UE channel measurement utilizing a set of UE IDs and UL scheduling information for the set of UEs. In addition to the above, the computer-readable medium can comprise code for causing the computer to receive an assignment to provide wireless service to a subset of the set of UEs based at least in part on one or more of the UE channel measurements. is there.

  According to yet another aspect of the present disclosure, provided is a method of wireless communication. The method can comprise transmitting a wireless signal comprising a resource assignment directly to a set of UEs, the resource assignment scheduling a transmission for each UE of the set of UEs on a common wireless resource. . Further, the method routes data transmission to or from a set of UEs via one or more wireless nodes, and at least cell division on common wireless resources for those data transmissions It may be possible to provide gain.

  In another aspect disclosed, provided is an apparatus configured for wireless communication. The apparatus can comprise a communication interface configured to exchange wireless signals with a base station and with a set of UEs. Further, the apparatus includes a memory for storing instructions configured to provide wireless services assisted by a remote node for one or more UEs in the set of UEs, and a module that implements the instructions. A data processor for execution. Specifically, these modules are resource schedules for a set of UEs that allocate a single set of wireless resources provided by multiple wireless nodes associated with the device to multiple data streams associated with the set of UEs. Can be provided with a scheduling module. In at least one aspect, these modules can further comprise a distribution module that uses the communication interface to send a resource schedule to each of a plurality of wireless nodes participating in the plurality of data streams.

  According to certain aspects, provided is an apparatus configured for wireless communication. The apparatus can comprise means for using a wireless transceiver to transmit a resource assignment directly to a set of UEs, wherein the resource assignments are set for each UE in the set of UEs on a common wireless resource. Schedule transmissions for Further, the apparatus routes each data transmission of the set of UEs via one or more wireless nodes to achieve cell division gain for at least one of those data transmissions on at least a common wireless resource. Means for using a wireless transceiver can be provided.

  In another aspect, disclosed is at least one processor configured for wireless communication. The processor can comprise a module that directly transmits a resource assignment to a set of UEs, which schedules a transmission for each UE in the set of UEs on a common wireless resource. Further, the processor routes each data transmission of the set of UEs via one or more wireless nodes to achieve cell division gain for at least one of those data transmissions on at least a common wireless resource Can be provided.

  In yet another aspect, provided is a computer program product comprising a computer-readable medium. The computer-readable medium can comprise code for causing a computer to transmit a resource assignment directly to a set of user equipment (a set of UEs), the resource assignment being a UE's over common wireless resources. Schedule transmissions for each UE in the set. Further, the computer-readable medium routes to the computer a data transmission of each of the set of UEs via one or more wireless nodes and a cell for at least one of those data transmissions over at least a common wireless resource. It is possible to provide a code for realizing the division gain.

  To the accomplishment of the foregoing and related ends, one or more aspects comprise the features described in detail below and particularly pointed out in the claims. The following description and the annexed drawings set forth in detail certain illustrative features of the one or more aspects. However, these features are merely illustrative of some of the various ways in which the principles of various aspects can be used, and this description includes all such aspects and equivalent aspects I intend to.

1 is a block diagram illustrating an example system for real-time node assignment of a group of user equipment (UE) for wireless communication. FIG. FIG. 7 is a block diagram illustrating an example apparatus that provides multi-node management for wireless relay nodes according to disclosed aspects. FIG. 7 is a block diagram illustrating an example apparatus that provides cell division utilizing multiple access channels provided by a set of wireless nodes. FIG. 4 is a block diagram illustrating an example wireless environment for selective cell division in accordance with certain aspects of the present disclosure. FIG. 6 is a block diagram illustrating an example wireless communication device according to another aspect of the present disclosure. 2 is a flow diagram illustrating a sample method for identifying a preferred access channel provided by a set of transparent repeaters. 6 is a flow diagram illustrating an example method for traffic delivery between multiple wireless nodes according to an aspect. 6 is a flow diagram illustrating a sample method for cell division in a wireless environment according to another aspect. 6 is a flow diagram illustrating an example method for utilizing a relay node to provide traffic allocation and range enhancement for wireless communications. 1 is a block diagram illustrating a sample system that provides multi-node traffic management for relay nodes used in wireless communications. FIG. 1 is a block diagram illustrating an example system that provides cell partitioning and range enhancement for relay nodes in wireless communications. FIG. 1 is a block diagram illustrating a sample wireless communications apparatus that can implement various aspects of the disclosure. FIG. FIG. 6 is a block diagram illustrating a sample cellular environment for wireless communication according to a further aspect. 1 is a block diagram illustrating an example cell-based wireless communication configuration suitable for one or more aspects disclosed. FIG.

  Various aspects are now described with reference to the drawings, wherein like reference numerals are used to refer to like elements throughout. In the following description, for the purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of one or more aspects. It may be evident, however, that such aspects can be practiced without these specific details. In other instances, well-known structures and devices are shown in block diagram form in order to facilitate describing one or more aspects.

  Moreover, various aspects of the disclosure are described below. It will be apparent that the teachings herein may be implemented in a wide variety of forms, and that any particular structure and / or function disclosed herein is merely representative. . Based on the teachings herein, the aspects disclosed herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. Those skilled in the art will recognize. For example, the apparatus can be implemented and / or the method can be implemented using any number of aspects described herein. Further, in addition to one or more of the aspects described herein, or using other structures and / or functions other than one or more of such aspects, the apparatus is implemented and / or Or the method can be implemented. By way of example, many of the methods, devices, systems, and apparatuses described herein are provided by, among other things, transparent relay nodes to provide channel differentiation, cell division, and range enhancement in wireless communication networks. In the context of managing access channels. Those skilled in the art will recognize that similar techniques may be applied to other communication environments.

  A wireless communication system implements electronic communication between remotely located wireless nodes via a local infrastructure deployment and a central network that couples to communicate the local infrastructure (eg, base station). In general, the local infrastructure can exchange wireless information with these nodes using various principles. In some cases, the infrastructure uses a set of remote wireless nodes under the control of a donor base station to provide wireless access coverage in a particular geographic area (eg, cell) served by that donor base station. It is possible to supplement. This configuration can provide a number of advantages. For example, a remote wireless node can provide cost-effective supplemental wireless services in some parts of a geographic area that receive poor coverage from a donor base station. Second, additional antennas in the wireless node can be utilized to achieve multi-antenna gain, theoretically similar to a MIMO antenna configuration or a coordinated multipoint (CoMP) configuration. However, doing so relies on the discovery of ways to identify and manage the various access channels provided by the wireless node. Other advantages may include reduced signal-to-noise ratio (SNR), improved performance at cell boundaries, smaller inter-cell interference or intra-cell interference, and so forth.

  Transparent repeaters create several problems in implementation. For example, a full-duplex wireless node may be less cost-effective, resulting in at least some preference for a half-duplex wireless node to be used instead. However, half-duplex nodes cannot transmit and receive signals simultaneously on a single band. Thus, for a single carrier environment, a half-duplex node has a single subframe, or other transmission time slot (for example, the term transmission time slot is referred to as orthogonal frequency division multiplexing [ OFDM] symbols, or signal subslots, signal subframes, groups of subframes / subslots such as interlaces, groups of OFDM symbols, or some other suitable time-based partitioning of a wireless signal, or a set of such partitions Fewer resources to be allocated for transmission and reception. For many wireless environments (eg, 3rd Generation Partnership Project Long Term Evolution [3GPP LTE], or simply LTE), the relay node is the donor base station (eg, donor eNB), the reference signal of the donor base station, the pilot In all transmission time slots that transmit signals, acquisition / synchronization signals, etc., these signals are not retransmitted or retransmitted. This considerably confuses the UE's channel measurements. In particular, if one subset of timeslots has only donor eNB signals while another subset of timeslots has both retransmitted and eNB signals, it is common for channel measurements. The time average used for can be broken.

  In addition to the above, the transparent relay node does not have an independent transmission that the UE can distinguish from the donor eNB. As a result, the measurement report or channel quality indicator (CQI) report does not identify the particular wireless node that supplies that channel and the particular channel conditions associated with that wireless node. Thus, it is difficult for the network to identify preferred channels and wireless nodes for different UEs. Furthermore, it is also difficult for the network to perform accurate rate prediction when the wireless node supports eNB transmission. As described in more detail below, various aspects of the present disclosure address these and other issues in wireless communications.

  FIG. 1 illustrates a block diagram of an exemplary wireless communication environment 100 in accordance with aspects of the present disclosure. The wireless communication environment 100 comprises a base station 102 that serves a geographic cell (ie, cell) associated with the base station 102. Base station 102 may be various types of radio access network infrastructure, depending on the type of network to which base station 102 is coupled. For example, in a universal mobile telecommunications system (UMTS) network, the base station 102 can comprise a NodeB, whereas in a global system for mobile communications (GMS) network, the base station 102 can be a base transceiver base. It is possible to provide a station. However, the base station 102 is not limited to the above examples, but rather, legacy base stations in legacy networks (eg, release 99) and high performance base stations (eg, enhanced) in newer networks (eg, LTE). It should be appreciated that Node B, i.e., eNB) is included within the scope of this disclosure.

In addition to the above, the base station 102 serves a set of UEs, UE ₁ 104A to UE _Z 104B, where Z is an integer greater than 0 (collectively referred to as UEs 104A-104B), and Base station 102 controls a set of wireless nodes including node ₁ 106A, node ₂ 106B to node _N 106C, where N is an integer greater than 0 (collectively referred to as wireless nodes 106A-106C). The wireless nodes 106A-106C may include transparent relay nodes in at least one aspect of the present disclosure. However, the present disclosure is not so limited, and one or more of the wireless nodes 106A-106C may be a transparent repeater, a transparent wireless repeater, a transparent picocell, a remote radio head, a smart repeater, an incremental redundancy repeater. Or any suitable combination thereof.

In operation, the base station 102 can schedule data transmissions of the UEs 104A-104B to be routed via one or more of the wireless nodes 106A-106C. Such a schedule may be used when one or more of the UEs 104A-104B have handed over to the wireless nodes 106A-106C or reported favorable SNR on one or more nodes of the wireless nodes 106A-106C (eg, Such as when the node is not a transparent node). Downlink (DL) control signaling from base station 102 can be sent directly over the air (OTA) UEs 104A-104B, or over DL transmissions via one or more of wireless nodes 106A-106C. Can be routed at. In at least one aspect of the present disclosure, base station 102 transmits resource assignment 108 to UE ₁ 104A and UE _Z 104B. Resource assignment 108 specifies a different set of wireless resources on one or more access channels, data channels, etc. provided by wireless nodes 106A-106C for each data transmission of the respective data transmission. Further, base station 102 transmits resource assignments 108 to wireless nodes 106A-106C, allowing these nodes to utilize different sets of wireless resources to identify the respective transmissions of UEs 104A-104B. To do.

  Initial DL and uplink (UL) data transmissions are routed to and from UEs 104A-104B via one default node of the wireless node or via each node of the wireless node. It is possible. Further, individual channel measurements are performed for each data transmission (eg, see below) to obtain channel measurements 110 for each access channel between each wireless node 106A-106C and each UE 104A-104B. (See FIG. 2). In one aspect of the present disclosure, the wireless nodes 106A-106C analyze the UL transmissions of their respective data transmissions to obtain channel measurements 110. In another aspect, UEs 104A-104B analyze DL transmissions of respective data transmissions (sent by one or more of wireless nodes 106A-106C) to obtain channel measurements 110. In yet another aspect, a combination of UL and DL transmissions can be included in channel measurement 110.

Upon receiving channel measurements 110, base station 102 extracts data related to individual access channels that couple UE 104A-104B and wireless nodes 106A-106C to communicate. As a result, the base station 102 can identify favorable characteristics of one or more of those access channels. For example, the wireless channel that couples Node ₂ 106B to UE ₁ 104A is better than the wireless channel that couples Node _N 106C to UE ₁ 104A, or the wireless channel that couples Node ₁ 106A to UE ₁ 104A, etc. It can be related to signal characteristics. Based on this information, the base station 102 can also assign node ₂ 106B, for example, to serve UE ₁ 104A. This analysis of the wireless channel from channel measurement 110 may be performed for each wireless channel involved in data transmission between wireless nodes 106A-106C and UEs 104A-106B. Thus, based on this analysis, the base station 102 can assign a subset of the wireless nodes 106A-106C to one or more of the UEs 104A-104B (or the base station 102 can directly control traffic and The exchange of data traffic can be selected if no wireless channel exists over the channel that couples base station 102 to such a UE).

  It should be appreciated that the base station 102 is not limited to analyzing each wireless channel via a single characteristic or signal metric. Rather, the characteristics can comprise one or more signal metrics, and if more than one signal metric is utilized, each metric has a weighting equation or a different metric in calculating the signal characteristics. Other suitable functions that assign relative importance to can be weighted in relation to other metrics. In some aspects, the base station 102 can use multiple signal characteristics to select a preferred wireless channel to serve one or more of the UEs 104A-104B. As a specific example, the characteristics may be signal strength, SNR, rise over thermal, path loss, relative signal interference, achievable bandwidth, or a feasible data rate, or another suitable metric of signal strength or signal quality, or It is possible to provide the above appropriate combinations with appropriate relative weights.

  FIG. 2 shows a block diagram of an exemplary wireless system 200 for providing improved wireless communication. As an example, the wireless system 200 can provide preferential channel selection for an access channel involving a set of wireless nodes. In at least one aspect, one or more of the wireless nodes can comprise a transparent node, although the present disclosure is not limited to this aspect.

  The wireless system 200 can comprise a base station 202 coupled to a node assignment device 204. Further, base station 202 is coupled to communicate with a set of wireless node access points 214 that provide supplemental wireless coverage within a geographic area serviced by base station 202. In one aspect, the base station 202 can be coupled to one or more of the wireless node access points 214 by a wired backhaul, but more generally the base station 202 is wireless by the wireless backhaul. Coupled to node access point 214. The wireless backhaul may comprise a subset of the single carrier transmission time slots used by the base station 202 (eg, when the wireless node access point 214 uses half-duplex communication) or the base All (or some other subset) of the transmission timeslots of the second carrier used by the base station 202 dedicated to backhaul communication between the station 202 and the wireless node access point 214 may be provided.

  Similar to wireless node 106A-106C of FIG. 1 above, wireless node access point 214 may comprise a wireless repeater, a transparent repeater, a wireless repeater, a smart repeater, and the like. is there. In general, the wireless node access point 214 is configured to provide a set of access channels for at least data traffic communication for one or more UEs (not shown) served by the base station 202. In one aspect, these access channels are limited to DL data traffic and UL data traffic. However, in other aspects, the access channel may carry both data and control traffic in the UL, or in the DL, or in a combination of UL and DL.

  Node assignment device 204 exchanges wireless signals with a UE, and with a set of access points (eg, wireless node access point 214) associated with base station 202 and remotely located from base station 202. The wireless communication interface 206 may be provided. In one aspect, the wireless communication interface 206 comprises the transmit-receive chain of the base station 202 (not shown, but see FIG. 12 below as an example). However, in other aspects, the wireless communication interface 206 may communicate with the base station 202 (or the base station transmit-receive chain) to perform wireless signal exchanges with the UE and with a set of access points. It can be a hardware module or a software module that communicates electronically.

  In addition to the above, the node assignment device 204 can comprise a memory 208 for storing instructions configured to provide selective access point services to the UE based on relative access channel measurements. Further, the node assignment device 204 can comprise a data processor for executing the modules to implement those instructions. In particular, the module shares an identifier (ID) and transmission schedule for the UE with the set of wireless node access points 214 (eg, using the wireless communication interface 206 and the base station 202 to the set of wireless node access points 214 to the IE). And by sending a transmission schedule) a distribution module 212 may be provided. The UE ID and transmission schedule may assist the wireless node access point 214 in identifying the signals transmitted by the UE and the access channel resources that should expect those signals, respectively. Further, the node allocator 204 determines at least one access point 214 of the set of wireless node access points 214 to serve the UE based on respective UE signal measurements provided by the subset of wireless node access points 214. A mediation module 216 to select may be provided.

  It should be appreciated that, in at least some aspects disclosed, the node assignment device 204 can be configured to mitigate the problem of distinguishing access channels provided by transparent repeaters. Usually, the UE reports DL channel measurements to the base station in order to give the base station notification of channel strength, quality, etc. observed by the UE. However, because the UE cannot distinguish transparent repeaters from base stations or from each other, the UE cannot provide different channel measurements for different repeater access channels. However, by sharing the UE ID and transmission schedule among the wireless node access points 214, each access point can at least make a measurement of the UL transmission sent by the UE, respectively. These UE signal measurements can be forwarded to the base station 202 to distinguish between the respective access channels, and the base station 202 can select a preferred one of the wireless node access points 214 that should provide the service 214. Allows you to choose.

  Based at least in part on the foregoing, in one or more aspects of the present disclosure, the node allocator 204 may determine whether the UE during each UE signal measurement transmitted by each access point 214 of the wireless node access point 214. An analysis module 218 may be further included that identifies whether the signal measurement characteristics are different. In one particular example, the characteristics comprise signal strength characteristics, signal quality characteristics, or signal noise characteristics of UE signal measurements. As a more detailed example, the characteristics comprise signal strength, signal to noise ratio, rise over thermal, path loss, relative signal interference, achievable bandwidth, or achievable data rate, or a combination of the above. It will be appreciated that appropriate weights of the above characteristics may be used, in which case the characteristics comprise a plurality of weights of the above or similar examples.

  In one exemplary embodiment, the mediation module 216 selects one access point of a set of wireless node access points 214 to serve a UE with characteristics related to UE signal measurements provided by that one access point. Make a selection based on the value. In this case, the mediation module 216 analyzes the value of that characteristic relative to the respective value of the characteristic related to each UE signal measurement supplied by other access points of the subset of the set of access points. It can also be configured as a module that uses a selection policy stored in the memory 208. Specifically, the selection policy may be a policy that defines a preferred rating for the value of the property, or a target value for the property. In this case, the intermediary module 216 may determine that the value of the characteristic is closest to the target value (compared to the value of the characteristic related to UE signal measurements associated with other access points 214 of the wireless node access points 214) or Since the value exceeds the respective value of the property based on the preferred rating, that one access point is selected. In at least one aspect of the present disclosure, the mediation module 216 may include a plurality of access points 214 of a set of wireless node access points 214 to serve a UE, a respective UE of the plurality of access points of the set of access points. A selection is made based on the respective value of the characteristic associated with the signal measurement. This means, for example, that the multiple access points 214 of the wireless node access point 214 to serve the UE as long as the selection policy exceeds the respective value of the characteristic exceeds a threshold characteristic for multi-node service, etc. Can be done if

  According to yet another aspect of the present disclosure, the node assignment device 204 can comprise an integration module 220. The integration module 220 may be configured as a module that generates a redundancy policy that assigns each traffic, channel, or data stream associated with the UE to each access point of the plurality of wireless node access points 214. In particular, the integration module 220 can be activated to generate a redundancy policy when the mediation module 216 selects multiple access points to serve the UE. This redundancy policy is different when different types of traffic (eg, voice traffic, data traffic) are handled by different access points, and when different channels (eg, control channels, data channels) are handled by different access points. Streams (eg, application data streams, voice over internet protocol [VoIP] data streams, etc.) are handled by different access points, or each traffic, channel, or data stream, and some other appropriate for multiple access points Can be used to facilitate incremental redundancy services for the UE when splitting is provided. In certain aspects, the redundancy policy may include one or more characteristics of each UE signal measurement provided by multiple access points of a set of access points related to each traffic, channel, or data stream. In accordance with, assigning a respective traffic, channel, or data stream to each of the plurality of access points of the set of access points. In this case, the selection policy used by the mediation module 216 can further specify different characteristics (or combinations of characteristics) suitable for different channel types, traffic types, or data stream types, and further each traffic, channel Or the selection of each access point for the data stream can be performed by the mediation module 216 and can be included in the redundancy policy. Thus, if a certain access channel is preferred for voice traffic, an access point that provides that access channel can be assigned to UEs involved in voice traffic.

  FIG. 3 illustrates a block diagram of a sample wireless access system 300 in accordance with one or more aspects of the present disclosure. In particular, the wireless access system 300 comprises a base station 302 that is communicatively coupled to a multi-node management device 304. The multi-node manager 304 is a set of UEs (not shown) that are serviced by a wireless node (not shown, but see FIG. 4 below) associated with the base station 302, as will be described in more detail later. ) To provide a cell division gain. As with other wireless nodes described herein, one or more of the wireless nodes associated with the base station 320 can be a transparent repeater, a transparent wireless repeater, a transparent picocell, a remote radio head, a smart It is possible to provide a repeater, incremental redundant repeater, or another suitable wireless node, or a suitable combination of the above.

  The multi-node manager 304 is a communication configured to exchange wireless signals with a base station 302 and with a set of UEs (eg, by using the base station 302's wireless transmit-receive chain). An interface 306 can be provided. Further, the multi-node manager 304 implements these instructions and memory 308 for storing instructions configured to provide wireless services assisted by the remote node to one or more of the set of UEs. A data processor 310 for executing the module. In particular, the modules can comprise a scheduling module 312 that generates a resource schedule for the set of UEs. A resource schedule is a single set of wireless resources provided by multiple wireless nodes associated with a base station 302 (eg, a common frequency during or between a set of transmission time slots). Band) to allocate multiple data streams for a set of UEs. Further, the multi-node management device 304 can comprise a distribution module 314 that uses the communication interface 306 to send a resource schedule to each of a plurality of wireless nodes participating in a plurality of data streams. Thus, each wireless node can identify a UE or specific data stream for the wireless service, as specified by the resource schedule. By assigning multiple wireless nodes to these data streams, the advantages of cell partitioning and associated wireless benefits are realized, for example, via an improved SNR between each wireless node and each UE. Further, in some cases, improved throughput or data rate using a multi-antenna configuration (eg, when a subset of multiple wireless nodes serves at least one of the UEs) Can be realized.

  In some aspects of the present disclosure, the scheduling module 312 assigns each data stream of the plurality of data streams to each node of the plurality of wireless nodes. This can be done, for example, in a manner that maximizes the SNR for the data stream. In other aspects, the scheduling module 312 assigns each data stream of the plurality of data streams to a respective subset of the plurality of wireless nodes each comprising one or more of the plurality of wireless nodes. In these latter aspects, the multi-node manager 304 can use an integration module that establishes an incremental redundancy policy for one of a subset of wireless nodes comprising a plurality of wireless nodes. Further, the incremental redundancy policy can be a policy that includes assigning some portion of the data stream to each wireless node of a subset of the subset of wireless nodes. This policy can, in one example, assign each wireless node having the most suitable channel characteristics to each portion of the data stream, or assign multiple wireless nodes to one or more of those portions. Thus, it is also possible to realize a multi-antenna gain for at least those portions.

  According to yet another aspect of the present disclosure, the multi-node manager 304 may generate orthogonal codes for one or more of the multiple data streams to distinguish multiple transmissions between the multiple wireless nodes and the set of UEs. A smoothing encoding module 316 can be provided. Since the data stream is transmitted in a single transmission time slot or in a set of transmission time slots, the orthogonal code is the DL between the wireless node and the UE to help receive those transmissions. It can be incorporated into a transmission or UL transmission. Further, the encoding module 316 can generate different codes for different UEs, different repeaters, or different groups of UEs (eg, performing CoMP UL transmission). These codes can be utilized for scrambling on pilot transmission, data transmission, or a combination of pilot and data transmission. In one aspect, these orthogonal codes are generated by the encoding module 316 and explicitly sent to the respective wireless node or UE via physical layer signaling or layer 2 signaling. In another aspect, encoding seeds can instead be sent out by the encoding module 316 and these seeds are used for each wireless node or each UE to generate respective orthogonal codes. Can be done. In an alternative aspect, orthogonal codes can instead be sent by layer 3 signaling.

  According to a further aspect, multi-node allocator 304 can transmit power of base station 302 (and multi-node allocator 304 via base station 302) that is concurrent with a single set of wireless resources allocated to the data stream. An attenuation module 320 may be provided. This reduces interference for wireless nodes over a single set of wireless resources (eg, a particular frequency band), which in turn can increase the range of each wireless node. Is possible. This increased range, or range increase, may be particularly useful at the edge of a cell boundary or geographical boundary served by the base station 302, where the base station 302 provides poor service. However, the increased range provides a strong signal by making the base station 302 more accessible to the UE for each wireless repeater and increasing the load capacity of the wireless node and the overall base station 302. In some cases, it may be particularly useful. To implement power reduction for base station 302, scheduling module 312 may be configured as a module that reschedules transmission of base station 302 that is concurrent with a single set of wireless resources. In this case, the attenuation module 320 may transmit the transmission power of the base station 302 to 0 (or substantially) during a transmission time slot (or set of time slots) that is concurrent with transmission of a data stream over a single set of wireless resources. To 0).

  When using range enhancement, the base station 302 is not transmitting in the transmission time slot (multiple transmission time slots) utilized for the data stream, or is transmitting at lower power, so the CQI Obtaining information can be interrupted. To alleviate this problem, multi-node manager 304 uses time division duplex (TDD) channel correlation to estimate path loss in a wireless channel established between multiple wireless nodes and a set of UEs. An estimation module 322 can be utilized. For this reason, the path loss can be estimated directly rather than from the CQI information.

  In an alternative aspect, the multi-node manager 304 may instead reference a CQI dedicated reference signal (CQI-RS), eg, for one or more UEs configured to recognize a command to send CQI-RS. Can also be used to perform such transmissions. In this case, the scheduling module 312 transmits a channel quality indicator reference signal dedicated to the low reuse node (CQI-RS dedicated to the low reuse node) in one (or more) UEs of the set of UEs in the resource schedule. Include the commands you want to do. A communication interface 306 receives a CQI-RS dedicated to a low reuse node on an uplink channel from one UE in the set of UEs. The measurement module 324 is then used by the multi-node manager 304 to analyze the CQI-RS dedicated to the low reuse node to estimate the path loss for the wireless channel utilized by one UE in the set of UEs. Is possible.

FIG. 4 shows a diagram of an exemplary wireless access channel environment 400 in accordance with further aspects of the present disclosure. The wireless access channel environment 400 comprises a set of wireless nodes including node ₁ 404A, node ₂ 404B to node _N 404C (collectively referred to as wireless nodes 404A-404C). Each of the wireless nodes 404A-404C is coupled to communicate to at least one UE in the set of UEs including UE ₁ 402A to UE _Z 402B (collectively referred to as UEs 402A-404B). Data information (including packet data traffic and circuit switched traffic) or control information exchanged between the wireless nodes 404A-404C and UEs 402A-404B can be accessed separately from each wireless node 404A-404C and each UE 402A-402B. Sent via an access interface comprising a channel. As shown, three different access channels, UE ₁ access channel ₁ 402A combine to communicate to the wireless node ₁ 404A and 406A, access channel ₂ which binds to communicate UE ₁ 402A to the wireless node ₂ 404B 406B And access channel ₃ 406C (collectively referred to as control channels 406A-406C) that couples UE _Z 402B to communicate to wireless node _N 404C.

  In one aspect, control traffic may be transmitted directly from the base station associated with wireless nodes 404A-404C to UEs 402A-402B via respective control channels 408. In an alternative aspect, some or all of the control traffic can instead be transmitted via wireless nodes 404A-404C and access channels 406A-406C. Information exchanged between the wireless nodes 404A-404C and the base station is transmitted via a backhaul interface that couples the wireless nodes 404A-404C to communicate to the base station. In one aspect, the backhaul interface can comprise a wired interface, and in another aspect, the backhaul interface can comprise a wireless interface. According to yet another aspect, the backhaul interface can comprise a combination of a wired interface and a wireless interface (eg, a base station can directly communicate with one of the wireless nodes 404A-404C via the wired interface). And that one wireless node 404A-404C transfers the information wirelessly to the remaining wireless nodes 404A-404C).

  As described herein, each wireless node 404A-404C may measure the UL transmission of each UE 402A-402B to obtain a quality estimate or signal strength estimate for each access channel 406A-406C. Is possible. These estimates identify preferred access channels 406A-406C for each UE 402A-402B or for each type of traffic, channel, or data stream used by UEs 402A-402B, as described herein. Can be forwarded to the base station. Similarly, UEs 402A-402B may measure DL transmissions of respective wireless nodes 404A-404C to obtain quality estimates or signal strength estimates for respective wireless channels 406A-406C (eg, wireless nodes 404A-404). One or more of 404C are not transparent nodes). These estimates can also be used to identify the preferred access channels 406A-406C, forwarded to the base station by UEs 402A-402B via control channel 408 or via access channels 406A-406C. It is.

In at least one aspect, multi-antenna and CoMP wireless communication can be implemented for the wireless access channel environment 400. Thus, for example, Node ₁ 404A and Node ₂ 404B provide multi-antenna DL transmission for UE ₁ 402A to achieve the improved throughput or data rate available via such multi-antenna wireless communication. Is possible. Alternatively or additionally, one or more of the UEs 402A-402B may receive multiple antennas UL via multiple antennas associated with the respective UEs 402A-402B or via peer-to-peer communication between the multiple UEs 402A-402B. It is possible to implement UE CoMP for UL transmission by performing transmission. In any of the above multi-antenna cases, the base station may use the multi-node management described herein to improve SNR, improved cell division, or increased throughput or over the wireless channels 406A-406C. Data rates can be realized.

  FIG. 5 shows a block diagram of an exemplary wireless communication configuration 500 in accordance with further aspects of the present disclosure. The wireless communication configuration 500 comprises a relay node 502 coupled to communicate with a base station 504 via a wireless link 506. Base station 504 may comprise a node assignment device 508 that may be configured to identify a preferred access channel associated with relay node 502 (not shown, but see FIG. 4 above). To achieve this identification, the node assignment device 508 can send a set of UE IDs and UL or DL scheduling information 508 A to the relay node 502. The relay node 502 can exchange data with one or more UEs residing on the relay node 502 using the UE ID and UL or DL scheduling information, and further using the channel measurement device 510. Thus, channel measurements related to the data exchange can be performed. A UE channel measurement report 508B is transmitted by the channel measurement device 510 to the base station 504 and received at the node assignment device 508. Based on this report 508B of UE channel measurements, node assigner 508 can identify a preferred channel for each of one or more UEs, and further as described herein by relay node 502. An assignment 508C may be sent to the relay node 502 indicating a particular UE to be serviced, or a particular control or data traffic to be served by the relay node 502, a particular data stream, or a particular type of traffic.

  According to a further aspect, the base station 504 is configured to coordinate wireless service by a relay node 502 for one or more UEs and an additional one or more relays (not shown). An apparatus 512 can be provided. To implement the coordinated wireless service, the multi-node manager 512 can send a resource-UE allocation schedule 512A to the relay node 502. Resource-UE allocation schedule 512A provides a common set of wireless resources for data traffic performed by one or more UEs on an access channel provided by relay node 502 and one or more additional relays. specify. In at least one aspect, the multi-node manager 512 may specify UE / data specifying each channel, traffic, or data stream to be handled by the relay node 502 and the further one or more repeaters in a coordinated manner. A stream allocation 512B may further be provided. This tailored manner may comprise cell division assignment, multi-antenna assignment, etc., as described herein. In particular, coordination of the relay node 502, and the further one or more relays, can be improved by improved SNR, multi-antenna allocation based on channel conditions between each relay and each UE identified by the node allocation device 508. It should be appreciated that can be implemented to provide improved performance over a common set of wireless resources, including improved throughput gain or data rate gain realized by the

  The system or apparatus described above has been described in connection with interactions between several components, modules, and / or communication interfaces. Such systems and components / modules / interfaces may include components / modules or submodules defined within such systems, some of the defined components / modules or submodules, and / or additional modules. It should be recognized that it can be included. For example, the wireless communication system may include a base station 102 coupled to the node assignment device 204 and the multi-node management device 304, and wireless nodes 404A-404C coupled to communicate with the UEs 402A-402B, or these or other entities. Can include different combinations. Also, sub-modules can be implemented as modules that are coupled to communicate with other modules, rather than being included within a parent module. Furthermore, it should be noted that one or more modules can be combined into a single module that provides total functionality. For example, mediation module 216 includes distribution module 212, or distribution module 212 includes mediation module 216 and is one of a plurality of wireless nodes that are to serve a particular UE as a single component. Can be facilitated and the selection can be distributed to multiple wireless nodes. These components may also interact with one or more other components that are not specified herein but are known to those skilled in the art.

  Further, as will be appreciated, the various parts of the disclosed system described above, and the methods described below, are artificial intelligence based or knowledge based or rule based components, subcomponents, processes, means, methods. , Or mechanisms (eg, support vector machines, neural networks, expert systems, Bayesian belief networks, fuzzy logic, data fusion engines, classifiers ...), or such components, subcomponents, processes, means, It can consist of a method or a mechanism. Such components, among other things, automate some mechanisms or processes performed by such components in addition to those already described herein to make some parts of the systems and methods. Can be more adaptive, efficient and intelligent.

  In view of the exemplary system described above, methods that can be implemented in accordance with the disclosed subject matter will be better appreciated with reference to the flowcharts of FIGS. For ease of explanation, these methods are shown and described as a series of blocks, but the claimed subject matter is different than some blocks are shown and described herein. It should be understood and appreciated that in order, and / or concurrently with other blocks, can be performed and is not limited by the order of those blocks. Moreover, not all illustrated blocks may be required to implement the methods described hereinafter. Further, it will be further appreciated that the methods disclosed throughout the present specification can be stored on an article of manufacture that facilitates transferring and transferring such methods to a computer. I want to be. The term article of manufacture used is intended to encompass any computer readable device, device in conjunction with a carrier, or computer program accessible on a storage medium.

  FIG. 6 shows a flowchart of an exemplary method 600 according to certain aspects of the present disclosure. At 602, method 600 can comprise obtaining a set of UE IDs for a set of UEs served by a base station using a communication interface. Obtaining a set of UE IDs includes, for example, receiving an access request transmission, a pilot signal transmission, etc. from each UE in the set of UEs, and extracting each UE ID from each transmission Is possible. Alternatively, according to another aspect, obtaining a set of UE IDs includes, from a base station, a medium access control identifier, an international mobility identifier, a radio temporary network identifier (RNTI), a control for each UE in the set of UEs. Further comprising receiving an RNTI, or mobile identifier. In this another aspect, the set of UE IDs is explicitly transmitted by the base station and received by the communication interface.

  At 604, method 600 employs a signal processor (eg, receiver, demodulator, and data processor) that utilizes the UE ID set and UL scheduling information for the set of UEs to obtain respective UE channel measurements. Can be provided. In one aspect, obtaining UL scheduling information for a set of UEs further comprises receiving a schedule of sounding reference signal transmissions or a schedule of UL demodulation reference signal transmissions for each subset of the set of UEs from a base station. Prepare. In a further aspect, obtaining each UE channel measurement further comprises measuring a set of UL signals of a subset of the set of UEs transmitted according to UL scheduling information. In this case, the method 600 may further comprise transferring the result of measuring the set of UL signals to the base station.

  At 606, method 600 can comprise using the communication interface to receive an assignment to provide wireless service to a subset of the set of UEs based at least in part on one or more of the UE channel measurements. It is. According to certain aspects, receiving an assignment to provide wireless service to a subset of the set of UEs is based at least in part on a result of measuring the set of UL signals. As a specific example, the assignment can be an assignment based on multiple independent measurements of a set of UL signals performed by each relay node associated with the base station. In this case, the assignment may further be based on which of the subsets of relay nodes provided a preferred service to one or more of the subsets of the set of UEs. In at least one further aspect, the assignment comprises instructions for a plurality of relay nodes that serve one or more of a subset of the set of UEs utilizing an incremental redundancy policy. In this aspect, an incremental redundancy policy may be used to send a particular channel, or a particular traffic to each of a plurality of relay nodes for decoding, signal conditioning, and retransmission to one or more of a subset of the set of UEs. It can be a policy that involves associating with nodes.

  In another aspect of the present disclosure, the assignment may identify a particular relay node for serving a subset of the set of UEs. In this aspect, the assignment assigns one or more pico cells to be served to a subset of the set of UEs, assigns one or more remote radio heads to be served to a subset of the set of UEs Allocating one or more smart repeaters to serve a subset of the set of UEs, allocating one or more incremental redundant repeaters to serve to a subset of the set of UEs, or more Make at least one suitable combination.

  FIG. 7 shows a flow diagram of a sample method 700 according to yet another aspect of the present disclosure. At 702, method 700 can comprise obtaining a set of UE IDs and UL scheduling information for each UE in the set of UEs. At 704, method 700 can comprise identifying UL signals for a subset of the set of UEs according to scheduling information. At 706, method 700 can comprise measuring UL signals for a subset of the set of UEs to obtain UL channel measurements related to the UL signals. At 708, method 700 can comprise transferring the results of the measurement to a serving base station. At 710, method 700 can comprise receiving an assignment to service one or more of the UEs, the assignment and service being based at least in part on the results of the measurement. Further, at 712, method 700 can determine whether the assignment specifies multi-node service for at least one of the one or more of the UEs. If the assignment specifies a multi-node service, the method 700 can proceed to 714, otherwise, the method 700 can proceed to 718.

  At 714, method 700 can comprise extracting a redundancy policy from the assignment. At 716, method 700 can comprise providing the selected wireless service to one or more UEs as specified in the redundancy policy. For example, the redundancy policy may specify a portion of the traffic for one or more UEs associated with the selected wireless service. The appropriate part of the traffic is to provide a control traffic service or a data traffic service, one or more specific types of traffic (eg, voice traffic, VoIP traffic, streaming media traffic, web browsing traffic, application specific traffic) Etc.) or serving one or more specific data streams involving one or more UEs. At 718, method 700 can comprise providing data service to one or more UEs as specified by the assignment.

  FIG. 8 illustrates a flow diagram of an example method 800 in accordance with one or more aspects of the present disclosure. At 802, method 800 can comprise wirelessly sending resource assignments directly to a set of UEs using a wireless communication interface, wherein the resource assignments are for a set of UEs on a common wireless resource. Schedule transmissions for each. Specifically, a common wireless resource is a single transmission time slot, or one or more frequency bands, one or more tones, within a set of transmission time slots (eg, a single subframe), One or more codes can be specified. Further, at 804, the method 800 can route data transmission to or from the set of UEs via one or more wireless nodes using the wireless communication interface to at least It may be possible to provide cell division gain on common wireless resources for data transmission.

  In one aspect of the present disclosure, the method 800 can further comprise using common UL wireless resources for their common wireless resources, wherein data transmission is via one or more wireless nodes. And the cell division gain is observed on its common UL wireless resource. In an alternative aspect, the method 800 instead routes a DL data transmission on a common DL wireless resource from each node of the one or more wireless nodes, and DL cell division gain on the common DL wireless resource. Can be provided.

  According to further aspects, method 800 can further comprise using a respective wireless repeater to route DL and UL data transmissions for each UE in the set of UEs. Alternatively, method 800 can alternatively comprise using multiple wireless repeaters to route DL and UL data transmissions for at least one UE in the set of UEs. In an aspect using multiple wireless repeaters, the method 800 provides multi-antenna DL transmission or multi-antenna DL reception for at least one UE in the set of UEs to obtain a throughput gain available in multi-antenna wireless communication or A data rate gain can be realized.

  According to yet another aspect, method 800 causes a DL transmission range of one or more wireless nodes to cause a base station to blank out a set of DL wireless resources used by the one or more wireless nodes. It is possible to further comprise increasing. In particular, the set of DL wireless resources can include wireless resources that are concurrent with the common wireless resources. In an alternative or further aspect, the method 800 is used by at least one UE of the set of UEs to transmit the UL transmission range of the at least one UE of the set of UEs to the at least one UE of the set of UEs. Can be provided by instructing the set of UL wireless resources to be blank. Similar to the DL wireless resource described above, the UL transmission range may be increased if the set of UL wireless resources that are blanked by at least one further UE of the set of UEs is concurrent with the common wireless resource. Is possible.

  In another aspect, method 800 can assign a respective scrambling code to a subset of a set of UEs to facilitate distinguishing each data transmission of multiple data transmissions sent simultaneously on a common wireless resource. Can be provided. In this aspect, assigning each scrambling code may be to derive a scrambling code from a predetermined set of scrambling codes or to assign a scrambling code according to a unique identifier for each UE in a subset of the set of UEs. It can further comprise generating. As a partial aspect of the above, assigning a scrambling code may include sending a scrambling code seed or scrambling code seeding function to each UE in a subset of the set of UEs to determine the scrambling code of each UE. Enabling the generation of one code, transmitting an allocation grant comprising one or more of the scrambling codes using a physical layer control channel or a layer 2 control channel, or using layer 3 signaling , Explicitly sending a scrambling code to one or more UEs in a subset of the set of UEs, or at least one of the above suitable combinations.

  In yet another aspect of the present disclosure, the method 800 further comprises facilitating obtaining CQI information related to a set of relay channels between one or more wireless nodes and a set of UEs. Is possible. In particular, obtaining CQI information is, in one example, using a TDD channel correlation for each relay channel of a set of relay channels, and each path loss for each node of one or more wireless nodes. Can be provided. However, in an alternative example, acquiring CQI information instead analyzes the low reuse repeater dedicated CQI reference signal transmitted by a subset of the UE set and each associated with the subset of UE set. Estimating possible CQIs for a plurality of access channels.

  According to a further aspect, method 800 can comprise facilitating power control for one or more UEs in a set of UEs. For example, facilitating power control can comprise obtaining UL signal measurements from at least one of one or more wireless nodes via a wired or wireless backhaul link. Further, facilitating power control may include analyzing UL signal measurements to set UL power control for one or more UEs of a set of UEs served by at least one of one or more wireless nodes. It is also possible to provide for deriving. Once the set of UL power controls is derived, the method 800 issues UL power control commands to one or more UEs via at least one of the one or more wireless nodes based on the set of UL power controls. Is possible.

  FIG. 9 shows a flow diagram of a sample method 900 according to yet another aspect of the present disclosure. At 902, method 900 can comprise identifying common resources for access link data transmission for a set of UEs. At 904, method 900 can comprise allocating access link data transmission within a resource schedule. Further, at 906, method 900 can comprise establishing a scrambling code or scrambling seed for each data transmission, and further at 908, the resource schedule and scrambling code / scrambling seed can be converted to DL. It is possible to comprise sending directly to a set of UEs via control signaling on the control channel.

  In addition to the above, at 910, method 900 can comprise allocating a set of relay nodes to handle data traffic related to data transmission of the set of UEs. At 912, method 900 can comprise transferring the assignment to each relay node in the set of relay nodes. At 914, method 900 can further comprise reducing base station transmit power on common resources or blanking transmission.

  At 916, a determination is made whether the set of UEs comprises legacy UEs that are not configured to identify or use the low reuse CQI-RS. If no such UE is included in the set of UEs, the method 900 proceeds to 918. If so, the method 900 proceeds to 922.

  At 918, method 900 can comprise assigning a low reuse CQI-RS to a non-legacy UE of a set of UEs configured to use the low reuse CQI-RS. At 920, method 900 can comprise receiving respective low reuse CQI-RS transmissions from non-legacy UEs and estimating respective CQI information from each low reuse CQI-RS transmissions. is there. From 920, the method 900 proceeds to 926.

  At 922, method 900 can comprise identifying a TDD channel correlation for each access channel that couples a relay node of the set of relay nodes to a UE of the set of UEs. At 924, method 900 can comprise estimating respective path loss information from TDD channel correlation for each access channel. At 926, method 900 can comprise obtaining UL channel measurements from each relay node in the set of relay nodes. At 928, method 900 can each relate to each relay node, or each UE in the set of UEs, based at least in part on UL channel measurements, respective CQI information or respective path loss information, or an appropriate combination of the above. It is possible to comprise calculating the power control of. Each power control can then be distributed to relay nodes and UEs in the set of UEs for subsequent transmission.

  10 and 11 illustrate respective example apparatuses 1000, 1100 for implementing multi-node assignment and multi-node cell partitioning in wireless communications in accordance with aspects of the present disclosure. For example, the devices 1000, 1100 are at least partially in a wireless communication network and / or in a wireless receiver such as a personal computer coupled to a node, base station, access point, user terminal device, mobile interface card. It is possible. It should be appreciated that devices 1000, 1100 are represented as including functional blocks, which may be functional blocks representing functions implemented by a processor, software, or combination of processors and software (eg, firmware).

  The apparatus 1000 can include a memory 1002 for storing modules or instructions configured to perform the functions of the apparatus 1000. Apparatus 1000 can further comprise a module 1004 for obtaining a set of UE IDs for a set of UEs served by a base station associated with apparatus 1000 using a communication interface. Further, apparatus 1000 employs a signal processor 1010 that utilizes a set of UE IDs and UL scheduling information for the set of UEs to obtain respective UE channel measurements of access channels used by each UE in the set of UEs. A module 1006 can be provided. Further, apparatus 1000 comprises a module 1008 for using the communication interface to receive an assignment to provide wireless service to a subset of the set of UEs based at least in part on one or more of the UE channel measurements. Is possible.

  Apparatus 1100 may be a module or instructions configured to perform the functions of apparatus 1100, including providing cell partitioning for wireless communications involving a set of UEs served by a set of relay nodes associated with apparatus 1100. Can be provided. Furthermore, apparatus 1100 can comprise a module 1104 for transmitting a resource assignment directly to a set of UEs using a wireless transceiver, wherein the resource assignment is a set of UEs on a common wireless resource. Schedule transmissions for each of these. Further, apparatus 1100 uses a wireless transceiver to route each data transmission of the set of UEs via one or more wireless nodes, and at least one of those data transmissions over at least a common wireless resource. A module 1106 may be provided for realizing cell division gain.

  FIG. 12 illustrates a block diagram of an example system 1200 that can facilitate wireless communication in accordance with certain aspects disclosed herein. On the DL, at the access point 1205, a transmit (TX) data processor 1210 receives, formats, encodes, interleaves, modulates (or symbol maps) traffic data, and modulates (“data symbols”). ]). A symbol modulator 1215 receives and processes the data symbols and pilot symbols to provide a stream of symbols. A symbol modulator 1215 multiplexes data symbols and pilot symbols and provides the multiplexed symbols to a transmitter unit (TMTR) 1220. Each transmission symbol can be a data symbol, a pilot symbol, or a signal value of zero. Pilot symbols can be sent continuously within each symbol period. The pilot symbols are frequency division multiplexed (FDM), orthogonal frequency division multiplexed (OFDM), time division multiplexed (TDM), code division multiplexed (CDM), or more, or the like Any suitable combination of modulation techniques and / or transmission techniques can be used.

  TMTR 1220 receives the stream of symbols, converts it to one or more analog signals, and further adjusts (eg, amplifies, filters, and frequency upconverts) those analog signals over the wireless channel. To generate a DL signal suitable for transmission. Next, the DL signal is transmitted to the terminal device via the antenna 1225. In terminal device 1230, antenna 1235 receives the DL signal and provides the received signal to a receiver unit (RCVR) 1240. A receiving unit 1240 adjusts (eg, filters, amplifies, and frequency downconverts) the received signal and digitizes the adjusted signal to obtain samples. A symbol demodulator 1245 demodulates received pilot symbols and provides them to a processor 1250 for channel estimation. A symbol demodulator 1245 further receives a frequency response estimate for the DL from the processor 1250 and performs data demodulation on the received data symbols to obtain a data symbol estimate (which is an estimate of the transmitted data symbols). , Provide those data symbol estimates to RX data processor 1255, which demodulates (ie, symbol demaps), deinterleaves, and decodes the data symbol estimates to recover the transmitted traffic data. To do. The processing by symbol demodulator 1245 and RX data processor 1255 is complementary to the processing by symbol modulator 1215 and TX data processor 1210 at access point 1205, respectively.

  On the UL, a TX data processor 1260 processes traffic data and provides data symbols. A symbol modulator 1265 receives and modulates the data symbols along with the pilot symbols to provide a stream of symbols. Transmitter unit 1270 then receives and processes the stream of symbols to generate a UL signal that is transmitted by antenna 1235 to access point 1205. Specifically, the UL signal can conform to SC-FDMA requirements and can include a frequency hopping mechanism as described herein.

  At access point 1205, the UL signal from terminal device 1230 is received by antenna 1225 and processed by receiver unit 1275 to obtain samples. A symbol demodulator 1280 then processes the samples and provides an estimate of the received pilot signal and data symbols for the UL. An RX data processor 1285 processes those data symbol estimates to recover the traffic data transmitted by the terminal device 1230. A processor 1290 performs channel estimation for each active terminal device transmitting on the UL. Multiple terminal devices may transmit pilots simultaneously on each assigned set of pilot subbands on the UL, and these pilot subband sets may be interlaced.

  Processors 1290 and 1250 direct (eg, control, coordinate, manage, etc.) operation at access point 1205 and terminal device 1230, respectively. Respective processors 1290 and 1250 can be associated with memory units (not shown) that store program codes and data. Processors 1290 and 1250 can also perform computations to derive frequency-based and time-based impulse response estimates for UL and DL, respectively.

  In the case of a multiple access system (for example, SC-FDMA, FDMA, OFDMA, CDMA, TDMA, etc.), a plurality of terminal apparatuses can simultaneously transmit on the UL. For such a system, pilot subbands may be shared between different terminal devices. Channel estimation techniques can be used when the pilot subband for each terminal device spans the entire operating band (possibly excluding the band edges). Such a pilot subband structure is desirable to obtain frequency diversity for each terminal device.

  The techniques described herein can be implemented by various means. For example, these techniques can be implemented in hardware, software, or a combination of hardware and software. For hardware embodiments that can be digital, analog, or both digital and analog, the processing unit used for channel estimation is one or more application specific integrated circuits (ASICs), digital signal processors ( DSP, digital signal processing device (DSPD), programmable logic device (PLD), field programmable gate array (FPGA), processor, controller, microcontroller, microprocessor, designed to perform the functions described herein Can be implemented within other electronic units that have been implemented, or combinations thereof. In the case of software, implementation may be via modules (eg, procedures, functions, etc.) that perform the functions described herein. These software codes can be stored in a memory unit and executed by the processors 1290 and 1250.

  FIG. 13 illustrates multiple base stations (BSs) 130 (eg, wireless access points, wireless communication devices) and multiple terminal devices 1320 (eg, ATs) that can be utilized in connection with one or more aspects. 1 shows a wireless communication system 1300 having BS 1310 is typically a fixed station that communicates with terminal equipment and may be referred to as an access point or Node B, or some other terminology. Each BS 1310 provides communication coverage for a particular geographic area or coverage area, labeled as 1302a, 1302b, and 1302c, shown as three geographic areas in FIG. The term “cell” can refer to a BS or a coverage area of a BS, depending on the context in which the term is used. To increase system capacity, the BS geographical area / coverage area is divided into multiple smaller areas (eg, three smaller areas with cell 1302a in FIG. 13), 1304a, 1304b, and 1304c. It is possible. Each smaller area (1304a, 1304b, 1304c) can be served by a respective base transceiver subsystem (BTS). The term “sector” can refer to a BTS or a coverage area of a BTS depending on the context in which the term is used. For a sectorized cell, BTSs for all sectors of the cell are typically juxtaposed within the base station of that cell. The transmission techniques described herein may be used for systems with sectorized cells as well as for systems with non-sectorized cells. For simplicity, in this description, unless otherwise specified, the term “base station” is used as a generic term for a fixed station that serves a sector and a fixed station that serves a cell.

  Terminal devices 1320 are typically scattered throughout the system, and each terminal device 1320 can be fixed or mobile. Terminal apparatus 1320 may also be referred to as a mobile station, user equipment, user device, wireless communication apparatus, access terminal apparatus, user terminal apparatus, or some other terminology. Terminal device 1320 can be a wireless device, a cellular phone, a personal digital assistant (PDA), a wireless modem card, and the like. Each terminal device 1320 may not communicate with the BS 1310 at all on the downlink (eg, FL) and uplink (eg, RL) or may communicate with one or more BSs 1310 at any given time. It is. The downlink refers to a communication link from the base station to the terminal device, and the uplink refers to a communication link from the terminal device to the base station.

  For a centralized architecture, system controller 1330 is coupled to base station 1310 and provides coordination and control for BS 1310. For a distributed architecture, BSs 1310 can communicate with each other as needed (eg, via a wired or wireless backhaul network that couples BSs 1310 to communicate). Data transmission on the forward link is often done from one access point to one access terminal at or near the maximum data rate that can be supported by the forward link or communication system. Additional channels of the forward link (eg, control channel) can be transmitted from multiple access points to one access terminal. Reverse link data communication can occur from one access terminal to one or more access points.

  FIG. 14 is an illustration of a planned or semi-planned wireless communication environment 1400 in accordance with various aspects. The wireless communication environment 1400 can receive one or more of one or more cells and / or sectors that receive, transmit, retransmit, etc., wireless communication signals with each other and / or one or more mobile devices 1404. A plurality of BSs 1402 can be provided. As shown, each BS 1402 can provide communication coverage for a particular geographic area, illustrated as four geographic areas labeled 1406a, 1406b, 1406c, and 1406d. Each BS 1402 can comprise a transmitter chain and a receiver chain, each of which is associated with a plurality of configurations related to signal transmission and signal reception, as will be appreciated by those skilled in the art. Elements (eg, processor, modulator, multiplexer, demodulator, demultiplexer, antenna, etc., see FIG. 12 above) may be provided. The mobile device 1404 can be, for example, a cellular phone, a smartphone, a laptop, a handheld communication device, a handheld computing device, satellite radio, a global positioning system, a PDA, or any other suitable for communicating via a wireless communication environment 1400. Device. The wireless communication environment 1400 is used in conjunction with various aspects described herein to facilitate the effects of multi-node repeater assignment and cell splitting in wireless communication, as described herein. Is possible.

  As used in this disclosure, terms such as “component”, “system”, “module”, etc. are hardware, software, running software, firmware, middleware, microcode, and / or combinations thereof Intended to refer to related entities. For example, a module can be, but is not limited to being, a process running on a processor, a processor, an object, an executable, a thread of execution, a program, a device, and / or a computer. One or more modules can exist in a process or in a thread of execution, and the modules can be localized on one electronic device or on two or more electronic devices. It is also possible to be distributed between them. In addition, these modules can be executed from various computer readable media having various data structures stored thereon. These modules can communicate by a local process or a remote process, such as by a signal having one or more data packets (eg, data from one component can be transmitted by a local system or distributed by signal). Interact with other components in the system, or interact with other systems over a network such as the Internet). Further, the components or modules of the systems described herein are reconfigured to facilitate the implementation of various aspects, goals, advantages, etc. described with respect to those components or modules. Or may be supplemented by additional components / modules / systems and, as will be appreciated by those skilled in the art, are not limited to the exact configurations shown in a given figure.

  Moreover, various aspects are described herein in connection with a UE. UE is system, subscriber unit, subscriber station, mobile station, mobile, mobile communication device, mobile device, remote station, remote terminal equipment, AT, user agent (AT), user device, or user terminal equipment (UT) Can also be called. A subscriber station can be a cell phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), a handheld device with wireless connectivity, or a wireless modem, or a processing device It can be other processing devices connected to similar mechanisms that facilitate wireless communication with.

  In one or more exemplary embodiments, the functions described may be implemented in hardware, software, firmware, middleware, microcode, or any suitable combination of the foregoing. It is. If implemented in software, the functions may be stored on or transmitted over as one or more instructions or code on a computer-readable medium. Computer-readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another. A storage media may be any physical media that can be accessed by a computer. By way of example, and not limitation, such computer storage media can include RAM, ROM, EEPROM, CD-ROM or other optical disk storage, magnetic disk storage or other magnetic storage devices, smart cards, and flash memory devices (eg, , Cards, sticks, key drives, etc.), or any other that can be used to transmit or store the desired program code in the form of instructions or data structures and can also be accessed by a computer It is possible to provide a medium. For example, the software may use a coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL), or website, server, or other remote source using wireless technologies such as infrared, wireless, and microwave. When transmitting from, the coaxial cable, fiber optic cable, twisted pair, DSL, or wireless technologies such as infrared, radio, and microwave are included in the definition of the medium. Discs and discs used herein include compact discs (CDs), laser discs, optical discs, digital versatile discs (DVDs), floppy discs, and Blu-ray discs. However, a disk normally reproduces data magnetically, whereas a disk optically reproduces data using a laser. Combinations of the above media must also be included within the scope of computer-readable media.

  For hardware embodiments, the various exemplary logic, logic blocks, modules, and circuits of the processing units described in connection with aspects disclosed herein may be one or more ASICs, DSPs, DSPD, PLD, FPGA, discrete gate or transistor logic, discrete hardware components, general purpose processors, controllers, microcontrollers, microprocessors, and other electronics designed to perform the functions described herein It can be implemented or performed within a unit, or a combination of the above. A general purpose processor may be a microprocessor, but in the alternative, the processor may be any conventional processor, controller, microcontroller, or state machine. The processor may also be a combination of computing devices, for example, a combination of a DSP and a microprocessor, as a plurality of microprocessors, as one or more microprocessors associated with a DSP core, or any other suitable configuration. It is also possible to implement as. Further, the at least one processor can comprise one or more modules operable to perform one or more of the steps and / or actions described herein.

  Moreover, various aspects or features described herein can be implemented as a method, apparatus, or article of manufacture using standard programming and / or engineering techniques. Further, method and algorithm steps and / or actions described in connection with aspects disclosed herein may be performed directly in hardware, in software modules executed by a processor, or in hardware and such It can be realized by a combination of software modules. Further, in some aspects, the steps or actions of the method or algorithm exist as at least one, or any combination or set of machine-readable media or code or instructions on the computer-readable media that may be incorporated into a computer program product. Is possible. The term “article of manufacture” as used herein is intended to encompass a computer program accessible on any suitable computer-readable device or computer-readable medium.

  Further, the word “exemplary” is used herein to mean serving as an example, instance, or illustration. Any aspect or design described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other aspects or designs. Rather, use of the word exemplary is intended to present concepts in a specific manner. The term “or” as used in this application is intended to mean an inclusive “or” rather than an exclusive “or”. That is, unless otherwise stated or apparent from the context, “X uses A or B” is intended to mean any natural inclusive substitution. That is, if X uses A, X uses B, or X uses both A and B, under any of the above examples, “X uses A or B "Yes" is satisfied. In addition, the article “a” or “an” as used in the present application and the appended claims generally refers to the “one or more” unless the context clearly dictates otherwise. Should be taken to mean "plural".

  Further, as used herein, the terms “guessing” or “guessing” generally infer or infer about the state of a system, environment, or user from a set of observations captured via events or data Refers to the process to do. Inference can be employed to identify a specific context or action, or can generate a probability distribution over states, for example. Inference can be probabilistic, that is, calculation of a probability distribution over several states of interest, based on data and event considerations. Guessing can also refer to a technique used to construct higher level events from a set of events or data. Such an inference is whether events and data come from a single event and data source or whether multiple events and data are related, regardless of whether the events are closely related to each other in time. Regardless of the source, it results in the construction of a new event or action from the observed event and / or stored event data set.

What has been described above includes examples of aspects of the claimed subject matter. Of course, it is not possible to describe every possible combination of components or methods for the purpose of illustrating the claimed subject matter, but it is possible that many further combinations and substitutions of the disclosed subject matter are possible. It can be recognized by the merchant. Accordingly, the disclosed subject matter is intended to embrace all such alterations, modifications, and variations that fall within the spirit and scope of the appended claims. Further, to the extent that the word “comprising”, “having” or “having” is used in the detailed description or claims, such a term is It is intended to be inclusive as well as “comprising” to be construed when used as a bridging word in the claims.
The invention described in the scope of the claims of the present invention is appended below.
[C1]
Wireless communication method with:
Obtaining a set of UE IDs for the set of UEs served by the base station;
Utilizing the set of UE IDs and UL scheduling information for the set of UEs to obtain respective UE channel measurements; and
Receiving an assignment to provide wireless service to the subset of the set of UEs based at least in part on one or more of the UE channel measurements.
[C2]
The selection of the subset of the set of UEs for the assignment may be based on a difference in characteristics of the respective UE channel measurements depending at least in part on one or more wireless access points associated with the base station. The method described.
[C3]
Obtaining the UL scheduling information for the set of UEs further comprises receiving a schedule of sounding reference signal transmissions or a schedule of UL demodulation reference signal transmissions for each subset of the set of UEs from the base station. The method according to C1, comprising.
[C4]
Obtaining the set of UE IDs receives, from the base station, a medium access control identifier, an international mobility identifier, a radio temporary network identifier (RNTI), a control RNTI, or a mobile identifier for each UE in the set of UEs. The method of C1, further comprising:
[C5]
The method of C1, wherein obtaining each UE channel measurement further comprises measuring a set of UL signals of the subset of the set of UEs transmitted according to the UL scheduling information.
[C6]
The method of C5, further comprising: forwarding a result of the measuring the set of UL signals to the base station.
[C7]
The method of C6, wherein receiving the assignment to provide wireless service to the subset of the set of UEs is based at least in part on a result of the measuring the set of UL signals.
[C8]
The assignment is based on a plurality of independent measurements of the set of UL signals performed by each relay node associated with the base station, and the assignment is further determined by any of the subsets of the relay nodes, the UE's The method of C7, based on whether to provide a preferred service to the one or more of the subset of the set.
[C9]
The method of C7, wherein the assignment comprises instructions for a plurality of relay nodes to serve the one or more of the subset of the set of UEs utilizing an incremental redundancy policy.
[C10]
The incremental redundancy policy may be used to decode, signal condition, and retransmit a specific channel or specific traffic to the one or more of the subsets of the set of UEs. The method of C9, comprising associating each of the nodes with each other.
[C11]
The method of C1, wherein the assignment performs at least one or more of the following combinations:
Allocating one or more pico cells to serve the subset of the set of UEs;
Assigning one or more remote radio heads to service the subset of the set of UEs;
Assigning one or more smart repeaters to serve the subset of the set of UEs; and
Assigning one or more incremental redundant repeaters to serve the subset of the set of UEs.
[C12]
A device configured for wireless communication, the device comprising:
A wireless communication interface configured to exchange wireless signals with a UE and with a set of access points associated with the device and remotely located from the device;
Memory for storing instructions configured to provide selective access point services to the UE based on relative access channel measurements; and
A data processor for executing the module to implement the instructions;
Here, the module comprises:
A distribution module that shares an identifier (ID) and transmission schedule for the UE with the set of access points; and
An intermediary module that selects at least one access point of the set of access points to serve the UE based on respective UE signal measurements provided by the subset of the set of access points.
[C13]
The apparatus of C12, further comprising an analysis module that identifies whether characteristics of the UE signal measurement differ between the respective UE signal measurements.
[C14]
The apparatus of C13, wherein the characteristic comprises a signal strength characteristic, a signal quality characteristic, or a signal noise characteristic of the UE signal measurement.
[C15]
The apparatus of C13, wherein the characteristic comprises signal strength, signal to noise ratio, rise over thermal, path loss, relative signal interference, realizable bandwidth, or realizable data rate, or a combination thereof.
[C16]
The intermediary module selects C13 to select one access point in the set of access points to serve the UE based on the value of the characteristic for UE signal measurement provided by the one access point. The device described.
[C17]
The intermediary module to analyze the particular value compared to a respective value of the characteristic related to a respective UE signal measurement provided by other access points of the subset of the set of access points; The apparatus of C16, wherein a selection policy stored in the memory is used.
[C18]
The apparatus of C17, wherein the selection policy defines a preferred rating for the value of the characteristic or a target value for the characteristic.
[C19]
The intermediary module has the 1 value because the value of the property is closest to the target value, or because the value of the property exceeds the respective value of the property based on the preferred rating. The apparatus of C18, which selects one access point.
[C20]
The mediation module is configured to allow the plurality of the set of access points to serve the UE based on a respective value of the characteristic associated with a UE signal measurement of each of the plurality of access points of the set of access points. The apparatus according to C13, wherein the access point is selected.
[C21]
Assign a respective traffic, channel, or data stream associated with the UE to each access point of the plurality of access points of the set of access points to generate a redundancy policy that facilitates incremental redundancy services for the UE The apparatus of C20, further comprising an integrated module.
[C22]
The redundancy policy is related to the respective traffic, channel, or data stream to each access point of the plurality of access points of the set of access points, and access related to the respective traffic, channel, or data stream. The apparatus of C21, comprising assigning based on one or more characteristics of respective UE signal measurements provided by the plurality of access points of the set of points.
[C23]
An apparatus for wireless communication comprising:
Means for obtaining a set of UE IDs for a set of UEs served by a base station using a communication interface;
Means for using the set of UE IDs for the set of UEs and a signal processor utilizing UL scheduling information to obtain respective UE channel measurements; and
Means for using the communication interface to receive an assignment to provide wireless service to a subset of the set of UEs based at least in part on one or more of the UE channel measurements.
[C24]
At least one processor configured for wireless communication comprising:
A module for obtaining a set of UE IDs for a set of UEs served by a base station;
A module that utilizes the set of UE IDs for the set of UEs and UL scheduling information to obtain respective UE channel measurements; and
A module that receives an assignment to provide wireless service to a subset of the set of UEs based at least in part on one or more of the UE channel measurements.
[C25]
A computer program product comprising a computer readable medium having recorded thereon the following code:
A code that causes a computer to obtain a set of UE IDs for a set of UEs served by a base station;
Code for causing the computer to obtain the respective UE channel measurements utilizing the set of UE IDs for the set of UEs and UL scheduling information; and
Code that causes the computer to receive an assignment to provide wireless service to a subset of the set of UEs based at least in part on one or more of the UE channel measurements.
[C26]
Transmitting a wireless signal comprising a resource assignment directly to a set of UEs, the resource assignment scheduling transmissions for each UE of the set of UEs on a common wireless resource; and
Routing data transmission to or from the set of UEs via one or more wireless nodes to achieve cell division gain on at least the common wireless resource for the data transmission A method of wireless communication comprising:
[C27]
Further comprising using a common uplink (UL) wireless resource for the common wireless resource, wherein the data transmission is received from the set of UEs via the one or more wireless nodes; The method of C26, wherein cell division gain is observed on the common UL wireless resource.
[C28]
C26 further comprising routing DL data transmissions on a common DL wireless resource from a respective node of the one or more wireless nodes to achieve DL cell division gain on the common DL wireless resource. the method of.
[C29]
Using a respective wireless repeater to route DL data transmission and UL data transmission for each UE in the set of UEs, or
The method of C26, further comprising at least one of using a plurality of wireless repeaters to route the DL data transmission or the UL data transmission for at least one UE of the set of UEs.
[C30]
C26 further comprising increasing the DL transmission range of the one or more wireless nodes by causing a base station to blank out the set of DL wireless resources used by the one or more wireless nodes. The method described.
[C31]
Blanking the UL transmission range of at least one UE of the set of UEs to at least one further UE of the set of UEs and the set of UL wireless resources used by the at least one UE of the set of UEs The method of C26, further comprising increasing by commanding.
[C32]
Further comprising: assigning a respective scrambling code to the subset of the set of UEs to facilitate distinguishing each data transmission of a plurality of the data transmissions sent simultaneously on the common wireless resource. The method described.
[C33]
Deriving the scrambling code from a predetermined set of scrambling codes, or
The method of C32, further comprising at least one of generating the scrambling code in response to a unique identifier for each UE in the subset of the set of UEs.
[C34]
The method of C32, wherein assigning the scrambling code further comprises at least one of the following:
Sending a scrambling code seed or scrambling code seeding function to each UE of the subset of the set of UEs to enable generation of one code of the scrambling code;
Transmitting an allocation grant comprising one or more of the scrambling codes utilizing a physical layer control channel or a layer 2 control channel; or
Explicitly sending the scrambling code to one or more UEs of the subset of the set of UEs using layer 3 signaling.
[C35]
The method of C26, further comprising obtaining CQI information related to the set of relay channels between the one or more wireless nodes and the set of UEs by at least one of the following:
Estimating a respective path loss for each node of the one or more wireless nodes using time division duplex (TDD) channel correlation for each relay channel of the set of relay channels; or
Analyzing a low reuse repeater dedicated channel quality indicator (CQI) reference signal transmitted by the subset of the set of UEs to realize a realizable CQI for each access channel associated with the subset of the set of UEs To estimate.
[C36]
The method of C26, further comprising:
Obtaining a UL signal measurement from at least one of the one or more wireless nodes via a wired or wireless backhaul link;
Analyzing the UL signal measurements to derive a set of UL power controls for the one or more UEs of the set of UEs served by at least one of the one or more wireless nodes; and
Issuing a UL power control command to the one or more UEs via at least one of the one or more wireless nodes based on the set of UL power control.
[C37]
A device configured for wireless communication, the device comprising:
A communication interface configured to exchange wireless signals with a base station and with a set of UEs;
A memory for storing instructions configured to provide wireless services assisted by a remote node for one or more UEs of the set of UEs; and
A data processor for executing a module that implements the instructions;
Here, the module comprises:
A scheduling module that generates a resource schedule for the set of UEs, assigning a single set of wireless resources provided by a plurality of wireless nodes associated with a device to a plurality of data streams associated with the set of UEs; and
A delivery module that sends the resource schedule to each of the plurality of wireless nodes participating in the plurality of data streams using the communication interface.
[C38]
The apparatus of C37, wherein the scheduling module assigns each data stream of the plurality of data streams to each node of the plurality of wireless nodes.
[C39]
The apparatus of C37, wherein the scheduling module assigns each data stream of the plurality of data streams to a respective subset of the plurality of wireless nodes each comprising one or more of the plurality of wireless nodes.
[C40]
The apparatus of C39, further comprising an integration module that establishes an incremental redundancy policy for one subset of the subset of the plurality of wireless nodes comprising a plurality of nodes of the plurality of wireless nodes.
[C41]
The apparatus of C40, wherein the incremental redundancy policy includes assigning some portion of a data stream to each wireless node of the one subset of the subset of the plurality of wireless nodes.
[C42]
The apparatus of C37, further comprising an attenuation module that reduces a transmission power of the apparatus that is simultaneous with the single set of wireless resources.
[C43]
The scheduling module reschedules the transmission of the apparatus that is concurrent with the single set of wireless resources, and the attenuation module is in a transmission time slot that is concurrent with the single set of wireless resources; The device according to C42, wherein the transmission power of the device is reduced to zero.
[C44]
The apparatus of C37, further comprising an encoding module that facilitates orthogonal codes for one or more of the plurality of data streams to distinguish transmissions between the plurality of wireless nodes and the set of UEs.
[C45]
The apparatus of C37, further comprising an estimation module that uses time division duplex (TDD) channel correlation to estimate path loss in a wireless channel established between the plurality of wireless nodes and the set of UEs.
[C46]
The scheduling module has a command that causes one UE in the set of UEs to transmit a channel quality indicator reference signal dedicated to a low reuse node (CQI-RS dedicated to a low reuse node) in the resource schedule. Including
The communication interface receives a CQI-RS dedicated to the low reuse node on an uplink channel from the one UE of the set of UEs;
The apparatus of C37, wherein the measurement module analyzes a CQI-RS dedicated to the low reuse node to estimate a path loss for a wireless channel utilized by the one UE in the set of UEs.
[C47]
One or more of the plurality of wireless nodes are:
Transparent repeater,
Transparent wireless repeater,
Transparent picocell,
Remote wireless head,
Smart repeater,
Incremental redundancy repeater, or
The apparatus according to C37, comprising the combination of the above.
[C48]
A device configured for wireless communication comprising:
Means for using the wireless transceiver to directly transmit to the set of UEs a resource assignment that schedules transmissions for each UE of the set of UEs on a common wireless resource; and
The wireless transceiver to route each data transmission of the set of UEs via one or more wireless nodes to achieve cell division gain for at least one of the data transmissions on at least the common wireless resource. Means for using.
[C49]
At least one processor configured for wireless communication comprising:
A module that directly sends to the set of UEs a resource assignment that schedules transmission for each UE of the set of UEs on a common wireless resource; and
A module that routes each data transmission of the set of UEs via one or more wireless nodes to achieve cell division gain for at least one of the data transmissions on at least the common wireless resource.
[C50]
A computer program product comprising a computer readable medium having recorded thereon the following code:
Code for causing a computer to directly send a resource assignment that schedules transmissions for each UE of the set of UEs to a set of UEs on a common wireless resource; and
To cause the computer to route each data transmission of the set of UEs via one or more wireless nodes to achieve cell division gain for at least one of the data transmissions on at least the common wireless resource Code.

Claims (11)

In the method of wireless communication,
The method is performed by a relay node;
And to win the user equipment served by the base station set of user equipment identifier for the set of (UE) (set of UE ID),
By using the set and uplink box scheduling information UE ID for said set of UE (UL scheduling information), and to win the respective UE channel measurements,
Receiving an assignment to provide wireless service to a subset of the set of UEs based at least in part on one or more of the UE channel measurements;
Here, obtaining each UE channel measurement result is:
Measuring a set of UL signals of a subset of the set of UEs transmitted according to the UL scheduling information;
Transferring the result of the measurement of the set of UL signals to the base station;
Further comprising
Receiving the assignment to provide wireless service to the subset of the set of the UE is based on the result of said measuring said set of at least partially UL signal,
A method comprising:   The selection of the subset of the set of UEs for the assignment is based at least in part on a difference in characteristics of the respective UE channel measurements in response to one or more wireless access points associated with the base station. Item 2. The method according to Item 1.   Obtaining the UL scheduling information for the set of UEs further comprises receiving a schedule of sounding reference signal transmissions or a schedule of UL demodulation reference signal transmissions for each subset of the set of UEs from the base station. The method of claim 1 comprising.   Obtaining the set of UE IDs receives, from the base station, a medium access control identifier, an international mobility identifier, a radio temporary network identifier (RNTI), a control RNTI, or a mobile identifier for each UE in the set of UEs. The method of claim 1, further comprising:   The assignment is based on a plurality of independent measurements of the set of UL signals performed by each relay node associated with the base station, and the assignment is further determined by any of the subsets of the relay nodes, the UE's The method of claim 1 based on whether to provide preferred services to the one or more of the subset of sets.   Receiving the assignment comprises receiving instructions for a plurality of relay nodes to serve the one or more of the subset of the set of UEs utilizing an incremental redundancy policy. The method of claim 1.   The incremental redundancy policy may be used to decode, signal condition, and retransmit a specific channel or specific traffic to the one or more of the subsets of the set of UEs. 7. The method of claim 6, comprising associating each other node with each other. The assignment is
Allocating one or more pico cells to serve the subset of the set of UEs;
Assigning one or more remote radio heads to service the subset of the set of UEs;
Assigning one or more smart repeaters to serve the subset of the set of UEs;
Assigning one or more incremental redundant repeaters to serve the subset of the set of UEs; or combinations thereof
The method of claim 1, wherein at least one of the following is performed . In a device for wireless communication and used by a relay node,
Using the communication interface, comprising: means for acquiring a set of user equipment identifier for the set of user equipment (UE) (set of UE ID) served by the base station,
And means for using the signal processor in which the set of UE ID regarding the set of the UE, and uplink box scheduling information (UL scheduling information) is used to acquire the respective UE channel measurements,
Means for using the communication interface to receive an assignment to provide wireless service to a subset of the set of UEs based at least in part on one or more of the UE channel measurements;
Here, means for using a signal processor to obtain each UE channel measurement result is:
Means for measuring a set of UL signals of a subset of the set of UEs transmitted according to the UL scheduling information;
Means for transferring the result of the measurement of the set of UL signals to the base station;
Further comprising
Means for using the communication interface to receive the assignment to provide wireless service to the subset of the set of the UE is based on the result of said measuring said set of at least partially UL signal ,
A device comprising: At least one processor configured for wireless communication and used by a relay node;
A module for acquiring the user equipment served by the base station set of user equipment identifier for the set of (UE) (set of UE ID),
The set of UE ID regarding the set of the UE, and by utilizing the uplink box scheduling information (UL scheduling information), a module for acquiring the respective UE channel measurements,
A module for receiving an assignment to provide wireless service to a subset of the set of UEs based at least in part on one or more of the UE channel measurements;
Here, obtaining each UE channel measurement result is:
Measuring a set of UL signals of a subset of the set of UEs transmitted according to the UL scheduling information;
Transferring the result of the measurement of the set of UL signals to the base station;
Receiving the assignment to provide wireless service to the subset of the set of the UE is based on the result of said measuring said set of at least partially UL signal,
At least one processor. A computer readable storage medium used by RELAY node,
The computer, and code for acquiring a set of user equipment identifier for the set of user equipment (UE) served by the base station (the set of UE ID),
The computer, and code the set of UE ID regarding the set of the UE, and by utilizing the uplink box scheduling information (UL scheduling information) to acquire the respective UE channel measurements,
Code for causing the computer to receive an assignment to provide wireless service to a subset of the set of UEs based at least in part on one or more of the UE channel measurements;
The code for causing the computer to obtain each UE channel measurement result is:
Measuring a set of UL signals of a subset of the set of UEs transmitted according to the UL scheduling information;
Transferring the result of the measurement of the set of UL signals to the base station;
Further comprising
The computer code for receiving the assignment to provide wireless service to the subset of the set of the UE is based on the result of said measuring said set of at least partially UL signal,
A computer- readable storage medium comprising:

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